Machine for testing the lubricating power of oils.



No. 745,997. PATENTED DEC. 8, 1903. H. V. BLAKE. MACHINE FOR TESTING THELUBRIGATING POWER OF OILS APPLICATION FILED APR. 3, 1903.

NO MODEL.

WITNESSES l/VVE/VTOH of! H f/zzZerz/f/Ekka Arm/m5 rs Srnrns fPatentedDecember 8, 1903.

PATENT OFFICE.

HUBERT VINCENT BLAKE, OF ACCRINGTON, ENGLAND.

SPECIFICATION forming part of Letters Patent No. 745,997, dated December8, 1903.

Application filed April 3, 1903.

To to whom it may concern:

Be it known that I, HUBERT VINCENT BLAKE,a subject of the King of GreatBritain, residing at Moorlands, VVhalley Road, Accrington, in the countyof Lancaster, England, have invented certain new and useful Improvementsin Machines for Testing the Lubricating Power of Oils, of .which thefollowing is a specification, such as will enable those skilled in theart to which it appertains to make and use the same.

Ihe object of this invention is to provide an improved machine or devicefor testing the lubricating power of various kinds of oils, greases, andother lubricants; and with this and other objects in view the inventionconsists in a machine of the class described constructed as hereinafterdescribed and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which- Figure l is a sectional side elevationof a machine embodying my invention, and Fig. 2 a similar view showing amodification designed for use particularly for testing heavy oils orother lubricants.

In the practice of my invention I provide a base a, having an arm athrough which passes a vertically-arranged shaft b, which is pivoted inthe base a, as shown at 5 and which passes through the arm a and isprovided at its upper end with a conical holder b \Vithin the conicalholder b is placed a cone-shaped device 0, having an upwardlydirectedspindle with which is connected arms 0 provided with fans or blades 0The arm a is provided at each side of the holder 5 with standards (Z and(1 the upper ends of which are provided, respectively, with counters orregistering devices 6 and e", which are provided, respectively, withoperating-shaftsfandf said shafts being provided, respectively, withtoothed or other operating-wheels g and g respectively.

The member 0 is provided with a projecting finger h, which is designedto operate in connection with the Wheel g, and thus operate the counteror registering device 8, and

Serial No. 160.894. (No model.)

the upper edge of the support 6 is provided with a finger or similardevice 2', which is designed to operate in connection with the wheel 9by which the counter or registering device 6 is operated.

The operation is as follows: A small quantity of oil or otherlubricantto be tested is placed in the holder b and the member 0 is thendropped thereiuto. The shaft his then rapidly revolved by means of apulley j for a certain length of time, and as the holder 19 revolves thefriction between the said holder and the member 0 causes the latter torevolve also, but at a speed slower than that of the holder 6 on accountof the resistance offered by the vanes or blades 0 After the machine hasbeen run for a given time the number of revolutions made by the holder band those made by the member 0 are noted and a record made of them. Thenthe second oil or lubricant is put into the holder after first cleaningthe same, and the above-described operation is repeated. If the numberof revolutions made by the member 0 be less with the second oil orlubricant than with the first, it naturally follows that the frictionbetween the holder and the member 0 has been less,

and therefore the second oil or lubricant is the better of the two.

My invention is not limited to the form of the hoider b and the conicalmember 0, and various forms of these parts may be adapted.

In Fig. 2 I have shown a modification in which the base a is providedwith a central opening 7c, and the shaft Z) passes vertically throughthe top portion of said base, and said base is also provided with an arm10 to which is pivoted a lever from which is suspended a number ofweights 15 and the lever 76' is provided with a pivotal point whichbears on the head 0 of the spindle 0 This form of construction isespecially designed for use in testing heavy oils or lubricants forheavy machines, and the weights in are used for pressing the member 0firmly into the holder 5 The operation with this form of constructionwill be the same as with that shown in Fig. 1; but it will be necessaryto raise the lever 70 in order to place the member c in position, andthe said lever and weights are, as Will be understood, designed for thepurpose of increasing friction.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A device of the class described comprising a base, avertically-arranged shaft mounted therein and provided at its upper endwith a holder, a member mounted in said holder and provided with anupwardly directed spindle having fans at its upper ends, and twocounters or registering devices supported adjacent to the holder one ofwhich is adapted to be operated by the said member and the other by theholder, substantially as shown and described.

2. Adevice of the class described comprising a base, avertically-arranged shaft mounted therein and provided at its upper endwith a holder, a member mounted in said holder and provided with anupwardly-directed spindle having fans at its upper ends, two counters orregistering devices supported adjacent to the holder one of which isadapted to be operated by the said member and the other by the holder,and means for supplying pressure to the upper end of the said spindle,substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing witnesses, this 24th day of March,1903.

HUBERT VINCENT BLAKE.

W'itnesses:

RICHARD WILDING, WILLIAM HENRY HALSTEAD.

